小编Pat*_*k89的帖子

当地图屏幕打开时，如何使地图居中以显示用户当前位置？按照expo文档，应该是用Expo Location API来实现吧？然而，文档并不清楚。我从世博会位置文档中获取了部分代码，并在我的地图屏幕中实现了它。那么，我应该如何将其集成到 MapView 中以执行 getCurrentPositionAsync 方法并在地图屏幕打开时相应地将地图居中呢？

import React, { useContext, useState, useEffect } from "react";
import MapView from "react-native-maps";
import styled from "styled-components";
import { Searchbar } from "react-native-paper";
import { View } from "react-native";

import * as Location from 'expo-location';

const Map = styled(MapView)`
height: 100%;
width: 100%;
`;

const SearchBarContainer= styled(View)`
padding: ${(props) => props.theme.space[3]};
position: absolute;
z-index: 999;
top: 20px;
width: 100%;
`;

export const MapScreen = ({navigation}) => {

  const [location, setLocation] = useState(null);
  const …